Integration of Potassium Phosphonate and Bioagent against Phytophthora Foot Rot (phytophthora Capsici leonion) of Black Pepper (piper Nigrum L.) Management in Arecanut Cropping System

Phytophthora foot rot is a serious disease in black pepper in Uttara Kannada district of Karnataka. Application of systemic fungicide, potassium phosphonate @ 0.3 per cent alone as spraying (3 l/vine) and drenching (5 l/vine) or integration of systemic fungicide, potassium phosphonate @ 0.3 per cent as spraying and drenching with bioagent, Trichoderma viride @ 50 g/vine along with 5 kg of farm yard manure to the basin of the black pepper vines during June and August were effective in reduction of disease incidence of Phytophthora foot rot of black pepper.